Treaties and other international acts series. 7593. Agricultural commodities, agreements between United States and Republic of Viet-Nam, amending agreement of Oct. 2, 1972, as amended, effected by exchange of notes signed Saigon Mar. 2 and 7, 1973, and agreement correcting agreement of Mar. 7, 1973, effected by exchange of notes signed Saigon Mar. 19, 1973; [entered into force Mar. 19, 1973].